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Temporal range: Late Triassic
Deltasaurus kimberleyensis.jpg
Restoration of Deltasaurus kimberleyensis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Order: Temnospondyli
Suborder: Stereospondyli
Family: Rhytidosteidae
Subfamily: Derwentiinae
Genus: Deltasaurus
Cosgriff, 1965
  • D. kimberleyensis Cosgriff, 1965 (type)
  • D. pustulatus Cosgriff, 1965

Deltasaurus is an extinct genus of Carnian temnospondyl amphibian of the Rhytidosteidae family.

D. kimberleyensis fossil

It is the most common animal fossil of the Blina Shale, a fossil deposit at the eastern end of the Erskine Range in the Kimberley region of Western Australia. A specimen has also been collected from the Knocklofty Sandstone deposit in Tasmania.

One species of Deltasaurus, D. kimberleyensis, grew to around 90 centimetres in length. It had four limbs and a tail, and numerous tiny teeth. It is thought to have been a predator of fish.


  • Warren, Anne (1987). "An Ancient Amphibian from Western Australia". In Hand, Suzanne and Michael Archer. The Antipodean Ark. Angus & Robertson. ISBN 0-207-15664-6. 

Further reading[edit]

  • Cosgriff, J. W. (1965). "A new genus of Temnospondyli from the Triassic of Western Australia". Journal and Proceedings of the Royal Society of Western Australia. 48: 65–90.